72289103 has 2 divisors, whose sum is σ = 72289104. Its totient is φ = 72289102.

The previous prime is 72289097. The next prime is 72289111. The reversal of 72289103 is 30198227.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 72289103 - 2¹² = 72285007 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 72289103.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (72289163) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36144551 + 36144552.

It is an arithmetic number, because the mean of its divisors is an integer number (36144552).

Almost surely, 2^72289103 is an apocalyptic number.

72289103 is a deficient number, since it is larger than the sum of its proper divisors (1).

72289103 is an equidigital number, since it uses as much as digits as its factorization.

72289103 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6048, while the sum is 32.

The square root of 72289103 is about 8502.2998653306. The cubic root of 72289103 is about 416.5728344086.

The spelling of 72289103 in words is "seventy-two million, two hundred eighty-nine thousand, one hundred three".